Crushing-machine.



0. DALE. CRUSHING MACHINE.

APPLICATION FILED JULY 14,1908.

1. l 00, l 74. v Patented June .16, 191 1 2 SHEETS'SHEET l.

O. G-.. DALE.

' .GRUSHING MACHINE. APPLICATION FILED ULY 14,1908.

1,100,174. Patented June 16, 191.4.

Z SHEETS-SHEET 2,

Q l I v.

I s kj Z5 'iiigilisg lUibz'esses: I Ila/613i? daxnct-ffi Orton Gifiale,

amwwm, y 8 062% U lECAJgUKIFIELD NEW' JERSEY, ASSIGNOB TQ MTEATMYKORHISQN MANIT- oansnmG-Macmnn Specification of Letters mam. t t June 1 914 appnmm med iui 1a, 1908. Serial no. 443,433.

" i'ng ii" trnnientaliiies.

Among other objects the invention is intended. is supply a machine which shall he efl'eciive in operation and. simple and stable in construction. V

The charactei of the invention may be cost uncierstooai by reference to the accompanying; drawings, Whi show for purposes of "llliSiKZiilOll one practicable embodiment ci e inYenticn.

in the drawings,-Figure 1 is a plan View oi? the illustrative machine; Fig. 2- 1s a section on the line of Fig. l; and, Fig. 3 a (letached cietail section of a crushing in shown in Fig; 2, on an axial .plane of drum. 1

ng" to the clrawings the specific we machine ccihpii'ses a'ci'u'sning 5, fixed upon a shaft ('5, mounted in s "1' and. having 'fii cerl at one end i a 8. The iatijer meshes with a 9 mounted upon a 'count'eishait 10., which is driven through a gear 1i- 'hy a gear 12. The gear 12 may be mounted upon the shait oi? a motor 13 or may lie otherwise driven in any practicable manner.

in the preferred operation of the machine the gearing is such that fihe drum is driven in the direction if the arrow in Fig. 2. The (ii-uni 5 preferably coinpriscsa plurality of sections, as shown in llig. '3, ancl each section may he pi cvirledl with teeth or other crushing" or breaking instrumentalities upon its periphery The drum seci one 14, '15, i6, 17 an i 18 may he mounicii side'hy side and COI'liLiCiI- laterallvi when the shaft 6, and \jh ey thin may be secured together so as to constitute substantially a' unit by means of the bolts 20, 21 One or more of the dimn-sectio's may be fixed to the shaft 6 by a pin 22. .n pioviding a drum of the character described with teeth or the like, if is'pr'eferred that the latter be hai'cl and of superior material, sons to withstand the destructive Wear to which they'ai'e ordinarily subjected; and it is impracticable to use in the body of the dru'n'ithe high grade of material desired for the teethf Accordingly, it is expedient to supply teeth separate from the material of the diizm. When this is done it is preferable 1e teeth be secured strongly in place, so that while separate from the drum and of-difierent material, they shallhe nevertheless in effect substantially 'rigid' a iji1ncts fihereto.

' This invention contemplates an especially advantageous construction of tooth and provision for securing she same to the clruin.

Referring now to Figs. 2 anal 3, each tooth may he made of manganese steel and ma' he'foimed with a base 25, which may exten across the periphery of a drum section and may dovetail into the latter, as shown in Fig. 2. Preferably, the top of the tooth base 25 is flush with the periphery of the drum section. Projecting from the base 25 is the crushing member 26 oi? the tooth. With the described .ait'angement the tooth has ,osifiivo engagement with the body of the c rum section tlironghozit the transverse extento'l: the latter; and the severe strains exerted upon the crushing member 26 of the teeth are transn iiiied to and distributed alon this extensiife engagement between the toot l and i fl Any practicable number oi teeth asstn bled with the drum as clescfibed, may be employed; "and in addition thereto other teeth or crushingfdevices 28, may he foi'iiied intlie inate'ria'i of the dru sections cheniscliies. 'lFr'eferablyfihe teeth 28 are of less dimensions, ihan' the" teethflfi, so that the former, While proper to perform a grindin of auxiliary crushing oih'ce, will he assists in or -reli e vfed from the heavier crushing W011i; hi? the lar er and stronger teeth 2%}. 1

Ltreferably each of the drum sections 14, 1,5, etc, has a plurality of each land of tooth 26 and 28; and they may have the staggered or spiral relation illustrated in Fig. l; as by having a tooth 26 on the drum section 2.5 positioned 36 degrees more or lessin advance of the tooth 26 on the drum 14, the auxiliary teeth 28 being in similar staggered relation on the drum sections." When so arranged the teeth on the respective drum sections may be disposed in a spiral around tie periphery of the drum as a whole, so as to have collectively a sort of spiral stlrring action contributory to the grinding or crushing operation. The same may be true of the auxiliary teeth 28, 28.

The teeth 26 may individual drum sections in any practicable manner; but preferably this is accomplished as follows. The drum sections may be secured together side by side and a dovetailed or other tooth receiving groove milled in the periphery of the drum from end to end. Thus, by a single operation each drum section may be provided with a tooth seat. Any number of such millingoperations may 'be employed to-provide the desired number of tooth seats; and the teeth may be assembledeherewith. It then it be desired to give the teeth a staggered relation, the drum sections may be rotated relatively one to another and secured in any desired relation. In the specific illustrative construction it is convenient to secure the drum sections to-v gether by the bolts 20 passing from end to and through the spokes of the drum sections. There may be any practicable number of these tie bolts, for instance, there may be five, as shown. in the drawings, and with this arrangement, if desired the teeth may be readily staggered by rotating each drum section through one-fifth of a revolution beyond its neighboring section on one side,

. and when so ad usted the bolt holes of the dificrent sections will register to receive the tie bolts.

In cooperation with such a crushing drum by an adjustable stop screw 41 mounted upon the stirrup bracket 38 and arranged to ureter-ab] Y o") ioscsl to i 3 i 1 abut against a part of the frame casting of themachinc. The ballle plate may be provided with teeth of any practicable form, the teeth of the drum. Preferably the uf'ling Slli'ffliiQS oi the drum and the baillc plate 2-35 converge toward the point of discharge of the material from the 1 be variously embodied. It is n be assembled with the species of hopper.

grinding action and as the material approaches this point of discharge it may be subjected to the conjoint action of both sets of teeth on the drum and'at the same tune to the opposing action of the teeth on the bafile plate. The conjoint grinding or crushing of the teeth may thus cause initially the breaking up of larger ieces of material, and thereafter a more or ess gradual reduction in the sizes'of the individual lumps or pieces until having reached their minimum desired size, they are discharged. As described the crushing members 26 of the larger teeth contribute advantageously to the breaking up of the material as well as the later grinding; and the preferably smaller teeth 28 are well adapted to complete the grinding to desired $126.

The yieldin character of the batlle plate, provided in tie specific. illustration by its pivotal weighted support, permits a relative yielding between the opposed crushing instrumentalities whenever the material becomes jammed therebetween or when any unbreakable mass is interposed between them. This is especially advantageous in connection with the crushing members 26 of the larger teeth, in that the latter though well adapted for heavy crushin work, are preserved against undue strainsfiiy the fact that their impacting against any unbreakable or abnormally hard substance may result in a mere yielding of the baflle plate and discharge of the objectionable material without injury to the teeth The framework of the machine may provide a species of chute 50 (Fig. 2; shown in horizontal section in Fig. 1) which preferably inclines in the general direction of the feed of material through the machine there by, if desired, supplying in conjunction with the opposed crushing instrumentalities a The jacket 51 may more or less inclose the drum.

In the operation of the machine, the material may be fed over the chute 50 or in any other practicable manner into the receiving space between the drum and bafile plate. The drum being rotated preferably contraclockwise in Fig. 2, the material is initially broken up, and through the course of operation is crushed to any desired fineness. the adjustable stop 41 permitting any desired relation between the baflle plate and drum to be determined, whereby the degree of fineness of the ground material may be varied,

The foregoing will suflicc to explain the general character of the invention. It. is to be understood that the invention is bv no means limited to the specific details of organization and construction hcreinbeforc set forth for illustration; since as will app va1- to-those skilled in the art the invention may 0t indispenios ' comprising,

sable that allfeatures of the invention be used conjointly, since'they may be employed separately to advantage.

Claims.

l. A machine of,the character described comprising, in combination, a crushing drum comprising a plurality of sections secured together; individual teeth of different material from that of the drum, removably dovetailed in the periphery of each said section, each said. tooth having an extendedportions of the bafile plate and drum-supplying a speciesof converging hopper to receive the material to be acted upon.

2. A machine of the character described in combination, a crushing drum comprising-a plurality of sections secured together; relatively large crushing or breaking teeth on the drum sections and of difierent material therefrom; a plurality of relatively small auxiliary grinding teeth interposed between two large teeth on the drum sections an opposing bafile plate to coiiperate with the drum and yielding meanspermitting relative change of position of said crushing drum and said bafiie plate. I

3. A mac inelof the character described comprising,=in combination", a plurality of drum sections secured together; a base member'separable from and rigidly mounted on each of said drum sections and having extended engagement therewith; a crushing member on sa1d base member, the crushing members on the respective drum sections be ing in staggered relation; and yielding means cooperating with the drum and said staggered teeth to perform" a crushing operation.

4. A. machine of the character described comprising, in combination, a plurality of drum sections secured together, a-base member separable from and rigidly mounted on each said drum sectionand having extended engagement therewith and abutting against zen adjacent drum section; a crushing memher on said base member, the crushing members on the respective drum sections being in staggered relation; and yielding means cooperating with the drum and said staggered teeth to pert'orm a crushing operatlon.

5. A machine of the character described comprising. in combination a plurality of coaxially disposed drum sections provided with staggered longitudinal grooves, crushing'members held in said grooves in staggered relation, said sections having alincd apertures, a rod extending through said apertures, and means cooperating with the drum and said members to perform a crushing operation,

6. 'A- machine of the character described comprising, in comblnation, a drum having a plurality of drum-sections provided with grooves, teeth held in the several sections in staggered relation'with' one another, and means cooperating 'wlth said drum to perform a crushing operation.

7. A machine of the cl'iaracter described comprising in combination, a plurality'of coaxially disposed drum sections each pro vided with a plurality of relatively large teeth, and a plurality of relatively small teeth disposed-between two of the relatively large teeth, the large teeth of theseverai sections being disposed in staggered relarooves of the tion with one another, and means cotiperating with said drum to perform a crushing operation. i i

8. A machine of the character described comprising, in combination, a plurality of coaxially disposed drum sections each provided with a plurality of relatively large teeth, and a plurality of relatively small teeth disposed between two of the relatively large teeth, the large teeth of the several sections being disposed in staggered relation w th one another, and the small teeth of the several sections being disposed in staggered relation with one another, and means cooperating with said drum to perform a crushing operation.

9. A machine of the character described comprising, in combination, a plurality of coaxially disposed drum sections each pro vided with one or more longitudinal grooves in its periphery, the grooves of the several.

drum sections being in staggered relation to one another, tooth members having bases held in said grooves,respectively, and abut-- ting against the ends of the adiacent sections, and means to secure said drum sections together and maintain said grooves in said staggered relation. I

10. A machine of the character described comprising, in combination, a plurality of coaxially arranged drum sections each pro vided with'a plurality of series of integral teeth and one or more longitudinal grooves between said series of teeth, the grooves and teeth of the several drum sections being arranged in staggered relation to one another, tooth members havingbases held in said grooves, respectively, and abutting against the ends of the adjacent sections. and means to secure said drum sections together to maintain said grooves in staggered relation.

11. A machine of the character described comprising, in combination, a plurality of mnxialiy disposed drum sections each provh. d with one or more longitudinal grooves in its periphery and a plurality of apertures, said grooves bein arranged in'steggcrmi relation to one snot er and said apertures registering with one another, tooth members having lases held in said grooves, respectivey, and abutting against the ends of the adjacent sections, and a member extending through said apertures to hold said grooves in such staggered relation.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

ORTON GJDALE.

Witnesses:

FmRENcE J. Wmsu, L. HARRY Boss. 

